<template>
  <div>
    <footer class="footer">
      <span class="todo-count"
        >剩余<strong>{{ num }}</strong></span
      >
      <ul @click="$emit('getType', type)" class="filters">
        <li>
          <a  @click.prevent="type='all'"  :class="{selected:type==='all'}" href="#/">全部</a>
        </li>
        <li>
          <a  @click.prevent="type='active'" :class="{selected:type==='active'}"  href="#/active">进行中</a>
        </li>
        <li>
          <a  @click.prevent="type='completed'" :class="{selected:type==='completed'}" href="#/completed">已完成</a>
        </li>
      </ul>
      <button v-show="showClear" @click="clearName" class="clear-completed">
        清除已完成
      </button>
    </footer>
  </div>
</template>

<script>
export default {
  name: "TodoFooter",
  props: {
    list: {
      type: Array,
      required: true,
    },
  },

  data() {
    return {
      type:'all'
    };
  },

  computed: {
    num() {
      return this.list.length;
    },
    showClear() {
      return this.list.some((item) => item.isDone);
    },
  },
  methods: {
    clearName() {
      this.$emit("doClear");
    },
  },
};
</script>

<style lang="scss" scoped>
</style>